Scania ALM DTC 1029 Fault in communication with the coordinator (COO)

ALM ALM control unit · Scania

Code 1029 (decimal). Some diagnostic tools show it in hexadecimal as 0405.

In short

A CAN message expected from the coordinator has failed to arrive.

Applies to: ALM1 (ALM)

What does Scania ALM fault code 1029 mean?

What causes Scania DTC 1029?

What are the symptoms?

How to fix Scania ALM fault code 1029?

Read the full explanation with Premium

Causes, system reaction, symptoms and step-by-step repair instructions for every fault code are available to Premium members.

  • Full explanations of every code and brand
  • Causes, symptoms and repair steps
  • New brands and codes included

Yearly plan: pay 10 months, get 12. Cancel at any time.

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

Code 1029 in other Scania systems

Compare code 1029 in every system →